Optimizing Soil pH and Care for Healthy Hemlocks

Target pH

6.0–7.0. Add lime in spring after winter rains. Clay soils need more lime than sandy.

Soil Issues: Understanding Soil pH: What It Is, Ideal Levels, and How to Adjust It; Amending Clay Soil: Mix Compost Thoroughly, Avoid Layering; Lowering Extremely Alkaline Soil (pH 8+): Why Gypsum Is Wrong and Which Amendments Work; Tomato Early Blight and Gardener Allergies: Fungicide Treatment and Personal Protection; Pure Mushroom Compost in Raised Beds: Why Blending with Native Soil Prevents Water Extremes; Testing Soil pH for Blueberries and Estimating Yield from a Small Planting; Improving Clay Soil for Root Vegetables in the Orkney Islands; Rebalancing Soil High in Phosphates, Potassium, and Magnesium; Kalanchoe Sudden Collapse: Pot Size & Soil Fatalities; Alfalfa Mulch: The Secret to Weed-Free, Worm-Rich Garden Beds

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